Wallaroo Weather in July (1981–2025)

📍 33.92°S, 137.62°E •
📊

July at a Glance in Wallaroo

(1981–2025)
Avg High
🔥
14.7°C
Avg Low
❄️
9.4°C
Avg Temp
🌡️
12.1°C
Avg Rain
🌧️
42 mm
Avg Humidity
💧
77%
Avg Wind
🌬️
4.9 m/s
Avg Solar
☀️
2.8
kWh/m²/day
vs Annual
📈
-5.4°C
temp difference
❄️Cool afternoons❄️Cold mornings☁️Cloudier skies🌦️Some rain💨Breezy💦Humid air

Wallaroo July Weather Overview

July is one of the cooler months of the year in Wallaroo, with average highs near 14.7°C and lows around 9.4°C (mean 12.1°C). It is a relatively wet time of year, averaging 42 mm of rainfall and 77% relative humidity across the period.

Wallaroo July Temperature History (1981–2025)

Range

July is one of the cooler months of the year in Wallaroo. Across 45 years of records, the warmest Julys in Wallaroo were 1988 and 2017 — when the month averaged 12.9°C — while the coldest was 1982 at 10.8°C. Typical July days reach 14.7°C with nights near 9.4°C. The long-term July temperature trend is broadly flat.

1981–1985 vs 2021–2025

Avg Temp11.6°C→12.2°C+0.6°C
Max Temp14.2°C→14.9°C+0.7°C
Min Temp8.9°C→9.5°C+0.6°C

Trend (per decade)

Avg Temp+0.1°C/decade ↗
Max Temp+0.1°C/decade ↗
Min Temp+0.1°C/decade ↗

Distribution of Avg Temp

10.0°C–10.8°C0 yr (0%)
10.8°C–11.5°C7 yr (16%)
11.5°C–12.3°C17 yr (38%)
12.3°C–13.0°C21 yr (47%)

Wallaroo July Rainfall History (1981–2025)

Range

July is a relatively wet time of year in Wallaroo, averaging 42 mm of rainfall. The wettest July on record was 1996 with 75 mm, while the driest was 2020 at 12 mm.

Wallaroo July Humidity History (1981–2025)

Range

Relative humidity in Wallaroo during July averages 77%. The most humid July was 2013 at 80%, and the least humid was 2018 at 72%.

Wallaroo July Solar History (1981–2025)

Range

July receives about 2.8 kWh/m²/day of solar energy in Wallaroo. The sunniest July was 1994 at 3.2 kWh/m²/day, and the cloudiest was 1984 at 2.1.

Wallaroo July Wind History (1981–2025)

Range

Average wind speed in Wallaroo during July is 4.9 m/s. The windiest July was 1995 at 5.9 m/s, while the calmest were 2001 and 2020 at 3.7 m/s.

What July Feels Like in Wallaroo

🌅
Cold
Morning
🌞
Cool
Afternoon
🌆
Cool
Evening
Rain chanceModerate
Outdoor comfort★★★★☆

How July Ranks in Wallaroo

🥶1st coolest month of the year
🌧️2nd wettest month of the year
☀️11th sunniest month of the year

Ranked against the other 11 months using 1981–2025 averages.

Explore Wallaroo Weather by Month

Wallaroo July Averages by Decade

Metric1980s1990s2000s2010s2020sChange
Avg Temp11.8°C12.1°C12.2°C12.2°C12.2°C+0.4°C
Avg High14.3°C14.7°C14.9°C14.9°C14.9°C+0.6°C
Avg Low9.2°C9.6°C9.5°C9.6°C9.4°C+0.2°C
Avg Rain49 mm45 mm40 mm40 mm32 mm-17 mm

Extreme July Records in Wallaroo

🔥Warmest July21.0°C1985
🧊Coldest July4.0°C1982
🌧️Wettest July75 mm1996
🏜️Driest July12 mm2020
🌬️Windiest July5.9 m/s1995

Key Insights for July

✅

July temperatures in Wallaroo have risen by about 0.6°C between 1981–1985 and 2021–2025.

✅

July has ranged from a record low of 4°C (1982) to a record high of 21°C (1985).

✅

Rainfall in July is a relatively wet time of year, averaging 42 mm, with a wettest year of 75 mm.

Is July a Good Time to Visit Wallaroo?

A quieter season to visit Wallaroo

If your dates are flexible, the more temperate months of March and January tend to be the most comfortable for visiting Wallaroo. That said, July — with days averaging 14.7°C and nights around 9.4°C (mean 12.1°C) and moderate rainfall (42 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.

See Wallaroo's complete weather history All 12 months side by side, 1981–2025 records, annual trends and long-term averages in one place. View full history →

Wallaroo Weather in July — In Depth

☀️ July climate overview

July is one of the cooler months of the year in Wallaroo, with average highs near 14.7°C and lows around 9.4°C (mean 12.1°C). It is a relatively wet time of year, averaging 42 mm of rainfall and 77% relative humidity across the period.

🌧️ Rain, humidity & wind in July

July averages 42 mm of rainfall in Wallaroo, a relatively wet time of year compared with the rest of the year. The wettest July on record saw 75 mm (1996), and the driest just 12 mm (2020). Humidity sits around 77% and average wind speed is 4.9 m/s, with solar radiation averaging 2.8 kWh/m²/day.

📈 How July has changed

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.6°C. Daytime highs moved from 14.2°C to 14.9°C and overnight lows from 8.9°C to 9.5°C over the same span.
July Weather in Wallaroo, Year by Year
🔥 warmest❄️ coldest🌧️ wettest
YearAvg HighAvg TempAvg LowHottest DayColdest DayRainfallHumidityWindSolar
202514.5°C12.2°C9.8°C17.2°C7.3°C54 mm74%5.4 m/s2.7
202415.2°C12.3°C9.4°C19.9°C5.8°C31 mm74%5.1 m/s3
202315.4°C12.5°C9.5°C19.6°C6.0°C16 mm78%4.5 m/s2.9
202214.6°C11.9°C9.2°C19.1°C5.6°C15 mm76%4.3 m/s2.7
202114.9°C12.2°C9.5°C19.7°C7.7°C61 mm77%5.7 m/s2.9
202014.8°C11.9°C8.9°C19.4°C7.1°C12 mm79%3.7 m/s3
201915.7°C12.8°C9.9°C19.5°C6.9°C26 mm79%4.4 m/s2.9
201815.5°C12.7°C9.8°C18.6°C7.2°C31 mm72%5.3 m/s2.9
201715.7°C12.9°C10.2°C19.9°C8.1°C42 mm74%5.4 m/s2.8
201614.5°C12.0°C9.4°C21.0°C6.3°C61 mm78%5.3 m/s2.7
201514.0°C11.5°C8.9°C16.7°C5.8°C23 mm77%4.9 m/s2.8
201414.5°C11.9°C9.4°C17.4°C6.7°C44 mm80%5.4 m/s2.8
201315.0°C12.6°C10.1°C17.8°C7.8°C66 mm80%4.9 m/s2.8
201214.2°C11.6°C9.0°C16.6°C6.2°C32 mm80%4 m/s2.9
201114.9°C12.3°C9.6°C19.4°C6.4°C36 mm76%4.4 m/s2.8
201014.5°C11.9°C9.3°C16.1°C6.9°C35 mm79%4 m/s3
200915.2°C12.7°C10.2°C18.9°C7.0°C43 mm79%5.5 m/s2.8
200814.5°C11.9°C9.4°C18.1°C5.6°C46 mm76%5.6 m/s2.8
200714.6°C12.0°C9.4°C18.8°C6.3°C32 mm77%4.9 m/s2.9
200614.2°C11.4°C8.7°C19.1°C5.5°C46 mm79%4.9 m/s2.6
200515.0°C12.3°C9.6°C19.1°C6.0°C33 mm78%4.1 m/s2.7
200414.5°C12.0°C9.5°C19.4°C6.7°C52 mm78%4.8 m/s2.6
200315.1°C12.1°C9.1°C19.1°C6.5°C29 mm76%5 m/s3.1
200215.9°C12.7°C9.5°C20.9°C6.9°C39 mm75%5.5 m/s2.8
200114.9°C12.4°C9.8°C19.2°C8.5°C38 mm79%3.7 m/s2.7
200015.0°C12.3°C9.5°C19.5°C7.4°C43 mm77%5.2 m/s2.9
199915.5°C12.6°C9.8°C19.2°C7.6°C22 mm76%4.3 m/s2.8
199813.7°C11.3°C8.9°C16.7°C6.9°C44 mm76%4.6 m/s2.7
199713.8°C10.9°C8.0°C17.5°C6.0°C16 mm75%3.9 m/s3
1996 🌧️14.8°C12.4°C9.9°C20.0°C8.3°C75 mm79%5.5 m/s2.7
199514.0°C11.8°C9.5°C16.1°C7.2°C69 mm77%5.9 m/s2.6
199415.8°C12.7°C9.5°C19.9°C8.0°C33 mm72%4.3 m/s3.2
199314.9°C12.4°C9.8°C19.4°C7.8°C50 mm76%5 m/s2.8
199215.4°C12.7°C10.1°C20.1°C8.3°C27 mm76%4.9 m/s3
199114.7°C12.3°C10.0°C17.8°C7.9°C46 mm78%4.5 m/s2.8
199014.6°C12.3°C10.1°C18.8°C8.2°C69 mm78%5.5 m/s2.8
198913.4°C11.3°C9.3°C17.0°C6.6°C69 mm78%5.2 m/s2.9
1988 🔥15.4°C12.9°C10.3°C18.5°C7.7°C29 mm76%5.3 m/s3
198714.4°C11.8°C9.2°C18.3°C6.5°C51 mm77%4.9 m/s2.7
198614.1°C11.9°C9.6°C18.0°C5.4°C70 mm75%5.4 m/s2.8
198515.1°C12.5°C9.8°C21.0°C6.6°C22 mm72%4.9 m/s2.8
198413.6°C11.2°C8.8°C17.0°C6.3°C58 mm79%5 m/s2.1
198313.6°C11.2°C8.7°C15.9°C6.3°C69 mm78%5.1 m/s—
1982 ❄️13.8°C10.8°C7.7°C16.5°C4.0°C16 mm74%4 m/s—
198115.0°C12.2°C9.5°C18.1°C7.6°C53 mm75%5.7 m/s—

Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.

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Wallaroo July Weather — FAQ

What is the average temperature in Wallaroo in July?▼

The average high in July is around 14.7°C with lows near 9.4°C (mean 12.1°C), based on 45 years of NASA POWER data.

Does it rain a lot in Wallaroo in July?▼

July averages 42 mm of rainfall in Wallaroo, a relatively wet time of year. The wettest on record was 75 mm in 1996.

What was the hottest July on record in Wallaroo?▼

The hottest July reached 21°C in 1985. The coldest dipped to 4°C in 1982.

Has July in Wallaroo gotten warmer over time?▼

Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.6°C. Daytime highs moved from 14.2°C to 14.9°C and overnight lows from 8.9°C to 9.5°C over the same span.

Is July a good time to visit Wallaroo?▼

July is one of the cooler months of the year in Wallaroo and a relatively wet time of year, so plan for around 14.7°C daytime highs and 9.4°C at night.

Is July the coldest month in Wallaroo?▼

Yes — July is the coldest month of the year in Wallaroo, averaging 12.1°C.

What should I pack for Wallaroo in July?▼

For July in Wallaroo, pack light layers you can adjust through the day, with typical highs of 14.7°C and lows of 9.4°C.

Is Wallaroo humid in July?▼

Relative humidity in July averages 77% — quite humid.

How windy is Wallaroo in July?▼

Average wind speed in July is 4.9 m/s. The windiest July on record averaged 5.9 m/s (1995).

Which July had the most rainfall in Wallaroo?▼

The wettest July on record was 1996 with 75 mm. On average, July sees 42 mm.

Where does this July weather data come from?▼

All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.

Other South Australia cities

Explore how the weather in Wallaroo behaves each July, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for July specifically, along with year-by-year records and how the month has changed over the decades.